Antiskid tire



Nov. 25, 1941. G. FAULDS 2,263,724

ANTISKID TIRE Filed March 27, 1939 5 Sheets-Sheet l WITNESSES; V Q INVEAgQR: ms Mr 1 302372 #11 9 5 35;? @wwg A TTORNE YS.

NOV. 25, 1941. uLDs 2,263,724

ANTISKID TIRE File d March 27, 1959 5 Sheets-Sheet 2 W 1 TNESSES:

INVENTOR:

A TTOR NE YS.

923M! I, I; 25 @201 z Faulds, I )4 BY @wfm Nov. 25, 1941. G. FAULDS ANTISKID TIRE Filed March 27, 1939 5 Sheets-Sheet 3 2 Faulds I N V EN TOR:

Gear

ATTORNEYS.

WITNESSES: 923W 20- Nov. 25, 1941. FAULDS I 2,263,724

ANTISKID TIRE Filed March 27, 1939 5 Sheets-Sheet 4 W I TNESSES:

INVENTOR- ATTORNEYS.

026 a? A BY B ga 52g Patented Nov. 25, 1941 UNITED STATES PATENT OFFICE 4 Claims.

This invention relates to vehicle tires, and has more particular reference to anti-skid means for application to, or incorporation in, the treads of such tires.

The primary object of the present invention is to provide a novel tread forming means whereby the tractive property is enhanced, and any tendency to skid is prevented when traveling over wet, ice, sleet or snow-covered, highways, streets and the like.

Another object is to provide a novel type of protector or cover that is easy to apply to standard types of vehicle wheels and tires and which, when secured thereto, presents a tread for wearing contact with the surface over which the vehicle is passing, that is substantially immune against skidding no matter how treacherous such surface may be.

The nature and characteristics of this invention will be best understood by reference to the accompanying sheets of drawings illustrative of preferred embodiments thereof, and which will now be described; it being premised that various changes may be made in the structural details and arrangement of the constituent parts, without departing from the spirit and scope of said invention as more particularly expressed in the concluding claims.

In the drawings:

Fig. I is a side elevation of a standard type of automobile wheel having one embodiment of the present invention applied thereto.

Fig. II is an enlarged scale fragmentary view showing the manner in which a juncture is made in accordance with the form of the preceding illustration.

Fig. III is a further enlarged scale cross-section, taken approximately on the plane IIIIII in Fig. II.

Fig. IV is a broken plan view of the outer surface of the tire and cover shown in Fig. I, with a portion in section to better illustrate otherwise hidden structure.

Fig. V is a longitudinal-section through the plane VV of Fig. IV, with the tire removed.

Fig. VI is a fragmentary elevation of a slightly modified form of the invention.

Fig. VII is a fragmentary section on the plane VII-VII of Fig. VI, but drawn to an increased scale.

Fig. VIII is a part side elevation illustrating the adaptation of this invention to a solid disk wheel.

Fig. IX is a cross-section on the plane IX-IX of Fig. VIII.

Fig. X is a perspective view of one of the antiskid units hereinafter fully described.

Fig. XI is a cross-section of a multi-ply tire having the fundamental feature of this invention embodied therein; and,

Fig. XII is a longitudinal section on the plane XIIXII in the preceding figure.

The anti-skid means constituting the essential feature of this invention is comprehensively designated, in Figs. I to X, inclusive, by the reference character I, and in said figures, it is illustrated as forming part of a transversely-split rubber cover 2. This cover 2 is suitably formed and shaped to provide a substantial tread 3 having flanking portions 4 that jointly fit well over the outer-half of the tire 5 and enclosed air tube 6, with the confronting ends 1 reduced and interlapped at 8 to accommodate expansion and contraction, as best understood from Figs. IV and V.

The anti-skid means or unit I, as best shown in Figs. IIIV, and X, more particularly, embodies a substantial base 9 preferably of quadrilateral cross-section, circumferentially of the cover tread 3, and of arcual section longitudinally or transverse to said tread. In other words, the base 9 embodies outer and inner concentrically-curved faces H), II, respectively, with outwardly-inclined sides l2. Integral with the outer portion of each such base 9 there is formed an arcual rib I3 of predetermined curvature, said rib being of predetermined dimensions to extend transversely across the cover tread 3, as well as project outwardly thereof. It is also to be noted the projecting portion of the arcual rib I3 is corrugated at I 4, or otherwise shaped to define oircumferentially-directed anti-skid projections for road grippage, as later on further amplified. The units l, as described, are individually slid or forced into somewhat inverted T-section or corresponding under-cut grooves l5, circumferentially spaced around the cover tread 3. At one end, each unit I is provided with a stop flange 15 having an outwardly-directed obliquely-disposed attaching-eye IT, as well as a corresponding but reversely-inclined similar eye [8 at the remote end of said unit.

Suitable means such as straps I9, 20, provided with buckles 2i, serve for the purpose of firmly retaining the units l in position with relation to the cover 2, said straps having secured to their free ends, rigid hooks 22 adapted to loop outwardly in the respective attaching-eyes [1, I8 above referred to, and in an obvious manner. In order to prevent circumferential creeping of the cover 2 relative to the tire 5 the former is,

for example, provided with tangentially-directed spaced slots 23 in the flanking portions 4, through which the straps I9, are passed, whereby the intervening material forms similarly-disposed retainer loops 24, as shown in FigsI-V, inclusive. Or, as illustrated in Figs. VI and VII, tangentially-directed staple-like loops 25 may be formed integral with the cover flanking portions 4 and the straps I9, 20 be passed therethrough in a clearly apparent manner. Preferably, and to additionally prevent circumferential creepage or displacement of the cover 2; at the adjoining ends I, the straps I9, 20 are crossed so as to engage upon opposite sides of adjoining wheel spokes 26; whereas the intervening straps H1, 20 tangentially embrace the rim 21 of the wheel 28 and tire 5 between other spokes 26, -Itis to be particularly noted that the respective anti-skid units l are disposed transversely in respect to the wheel tire 5 in alternately-reversed relation, so that any two adjacent arcual ribs. l3 are opposingly directed as clearly appreciable from "Fig. IV. This disposition of the arcual ribs I 3 ensures packing of snow, sleet andsoft earth Itherebetween, whereby the tractive g'rippagev ofvehicle wheels, equipped withlthis invention, isgreatly increased, and wheel racingv prevented.

Figs. VIII and I illustrate the adaptation. of this invention to a solid-disk wheel 2'9,1.and'. in view of the preceding description equallyapplying to this embodiment, only'the ld'iffering'features will be explained inorder to obviate unnecessary repetitive matter. In thisform of the invention, attaching-eyes 30, 3| are either rigidly formed or attached to the wheel. rim 21; while one of the straps I9, for instance, is provided with an additional hook32' for engaging thev eye whereas the other strap'2fl, for example, is made in two parts or with an addition 33 which is threaded through the other eye' 3|, said parts 20, 33 being attached'together by a buckle 2|, as. hereinbefore set forth.

Referring again to the straps I9, 20 and the manner of clamping same to the wheels, itwill be readily understood from'Fig. I that in applying the'cov'er 2 to a wheel 28 or 29,.and'first tightening up the straps I9, 20, at A A, Fig. I, or remote from theadjoiningends I, followed by similar action at'l3B, an'd thenat C-'-C, said cover'will be'cir'cumferentially drawn evenly and tightly around the tire 5, in contradistinction to the formation of inequalities or undulations therein if the straps I9, 20 were disposed radially oi? the wheels 28," 29. "This featureis highly important as when the crossed straps, 19,20 at 'DD in Fig. I are finally'tightened-up' the'entire coverzis "evenly boundto' the tire5' inna "mannerpositively preventative of any relative movement or creeping.

In the modified form of the invention shown'by Figs. XI and XII, the anti-skid units l" are made substantially as before described; with the excep- 'tion of not having end attaching eyes II, l'8;also,

that the arcualribs l3 are formed with longitudinalor'flanking flanges 34 in'place'of thebases 9, and said units are embedded in the tread "35 during manufacture of the tire36.

From the foregoing, the merits and advantages of the invention will be fully apparent without further elaboration herein, while it is to be remarked the anti-skid units l3 for winter weather service are preferably made of durable metal, and that they may be replaced by hard rubber corresponding ones for use in wet weather.

Having thus described my invention, I claim:

I. The combination with a vehicle tire of a protector comprising a transversely-split flexible cover, rigid inserts circumferentially-spaced and transversely-disposed around the tread portion of the cover, each insert embodying a curvilinearly-contoured substantial base with an arcual anti-skid rib bowed circumferentially of the protector, complemental-sectioned grooves transversely across the cover tread portion slidably receiving the rigid inserts with capacity for ready removahand means for securing the protector to the vehicle tire,

The combination with a vehicle tireof a protector comprising a transversely-split flexible cover, rigid inserts circumferential'ly-spaced' and transversely-disposed around the tread portion of the cover, each insert embodying a curvilinearly-contoure'd substantial 'base' and an arcual rib bowedcircumferentially of the protectonsaid ribhaving' the outer edge'suitablyshaped todefine circumferential-11wdisposed anti-skid projections, complemental-section transverse 1 grooves through the cover tread slidably' receiving the inserts withca pacity-for removal and thearoual ribs projecting outwardly thereof, and means for securing the cover'around the vehicle tire.

3. The -combination with a vehicle the of 'a protector con'iprisinga transversely-split flexible cover, 'rigid inserts circumferentially-spaced and transversely-disposed around the tread portion of the-cover, each insert embodyinga curvilinearlycontoured substantial base and an arcual rib bowed circumferentially of the protector, said rib, having the outer-edge suitably" shaped to "define circumferentially-disposed anti-skid projections, said insertsbeing' disposed-in alternately=reversed relation,"complemental-section transverse; grooves through the cover tread 'slidably receiving the inserts with capacity for re'mo'val and the arcual ribs projecting outwardly beyond the cover tread, angularly-directedeyes at-the ends of the respective inserts'for' tangential 00- -'action -wi-th the cover tread flanking portions,

and means engageable with'said eyes {to clamp the coverarourid the vehicle tire. j

4. 5 As an article 'of' manufacture, an anti-skid insert, forwheel the protectors of the' ty pe described, comprising a substantial base porticn'of quadrilateral cross-section, an arcual rib pro- -jecting from said basecwith'radially' related antiskid corrugate projections along its outer-eedge,

a stop flange at one endtf the insert with an obliquely disposed attaching-"eye projecting :out-

ward I thereof, and a a reverselyinclinedattaching-eye at the other end of said insert.

I GEORGE 'FAUIlDS. 

